内壳层电子电离对NaⅨ电子碰撞电离截面和速率系数的影响

Influences of Inner-shell Electron lonization on lonization Cross Sections and Rate Coefficients of Electron Impact on NaⅨ

在库仑-玻恩交换近似及我们改进的屏蔽常数定义和算法的Z-标度类氢模型下,计算了NaⅨ被电子碰撞的共振电离截面和速率系数.研究了内壳层电子电离对截面和速率系数的影响.

The resonance ionization cross sections and rate coefficients for electron impact on Na Ⅸ were obtained by using Coulomb-Born exchange approximation and Z-scaled hydrogenic model in which the definition and evaluation of the screening constant were improved. The influ-'ences of inner-shell electron ionization on cross sections and rate coefficients have been researched.